Of austin



`. oi` Austin, in the eounty of Travis vvTexas,

Improvements in Bullets 5 and I do hereby tiey ,i te, ,n llrnrnio iti-argenti @irrita JOSEPH C. PETMECKY," OF AUSTIN, TEXAS.

SPEGEFELUATN 'forming part of Letters Patent No. 233,'l14, dated October 12, 1880.

i Y Application filed March 8,1880. (No model.)

' To all whom it may concern:

Be it known thatl, Josnrn il. Pnfrnrnonv, and State of have invented certain new and useful elare the following to be a full, Yclear, and exact deseription ot' the invention, such as will en- `able others skilled in the art to which it appertains to make and use the saine, reference beinghad to the accompanying drawings, and to letters oi' reference marked thereon, which form a part of this siieeieation.

lt eonsists, in combination with a bullet hol of a tube ofnieral or other ilexif low at its base, blehiaterial elosed at one end and open at the otherand filled with wa); or other plastic or liquid substance, said tube, when so iilled, bcing placed in the deep cavity with the closed end outward even with the bullets base, as

.will be ,hereinafter more fully referred to.'`

In my drawings, Figure l isnn elevation of the bullet. 2 is a longitudinal section through the bullet. Fig. 3 is a transverse seetion ont on line of Fig. l. Fig, Ll is a longitudinal seetion,showing the tube with aiiange on its Closed end. l

Similar reference-letters indicate like parts in all of the figures.

Referring to drawings, ,A is the bullet, prov ided with a eavity, B, running from the ba se to about halt` thelength. The bullet is niatle in the elongated and pointed i'orni and eut square at the base.

A hollow cylindrical tube, or other ileriblb material, about the diameter of the cavity B, and closed at one end, is adapted for insertion into the bullet frein the hase, after being filled with wax or other soft or yielding substance.

ln the use of the iiexible tube iilleel with soft material I insert said tube in the eavity with its open end inward and its closed end ilnsh with the base surface ot' the bullet. When the powder' is ignited and the expand ing gases set free-the pressure received on the thin base or' said tube will cause an equal ex pension on the inner suri'aee of the rirn et' the tube, (the sol't substance yielding,) which, in turn, presses the metal el the bullet out ward to impingc upon the inner suraeeoi1 the barrel of the gun the entire depth of said cavity, 'forming of that portion oi' the bullet a true cylinder.

e, formed oi metal l am aware that bullets have been used with both deep and shallow cavities at" their bases to receive the expansive force of the powder toloree the metal into the rifle-grooves of the gun; but in practice it is found that the force exerted by the powder dees not act upon the meta-lP to any considerable depth of the cavity., and `eonsefpuently an. insuticientV bearing only is atl'orded and a wahbling inotionis the reresultu By expanding the bullet against the inside v fot the barrel or into the rifle-grooves, by means of the tube iilled with soi't material the depth in proportion shown in my bullet you give the.

surface a greater bearing te steady the motion g ofthe bullet, or when ritlin gis used astronger bearing is gained.

Mybullet is well adapted for use in gnnswth smooth, ritletl, or any other kind of bore, and its peculiarities will render it capable of more accurate shooting than Athat of any 'of which ll ain aware, even when ashortbarrel is used. l ordinarily whieh l insert in the eavityof my bullet so that when inserted said end will. come flush with the bullets here. l/Vhen, however, the cavity is made larger and the walls of the bullet surrounding said cavity are thin, there is a liability of the tube being pressed through and separating the solid part from the shell forming its base; and to avoidthis possibility l sometimes use a ilange at the elosed end of the tube somewhat similar to the pereussioniiangc oi a cartridge, the shoulder of w hieh, when said tube is placed, rests against the rear surface of the bullets base.

Having thus deseribed my invention, what l claim as new, and desire to secure by Letters Pater1t,is-

ln combination with a hollow bullet, the tube @,lled with sott plastic material, construeted as described, to he inserted in the cavity \vitlrits open end inward, for the purpose specified.

ln testimony `that have hereunto set my February, i880.

-rosnrn e. rnrnnonr.

l claim the foregoing I hand this 7th day ot' make the closed end of the'tubeof the bull-etv l 

